Step |
Hyp |
Ref |
Expression |
1 |
|
reltpos |
|
2 |
1
|
brrelex1i |
|
3 |
2
|
a1i |
|
4 |
|
elex |
|
5 |
4
|
adantr |
|
6 |
5
|
a1i |
|
7 |
|
df-tpos |
|
8 |
7
|
breqi |
|
9 |
|
brcog |
|
10 |
8 9
|
syl5bb |
|
11 |
|
funmpt |
|
12 |
|
funbrfv2b |
|
13 |
11 12
|
ax-mp |
|
14 |
|
snex |
|
15 |
14
|
cnvex |
|
16 |
15
|
uniex |
|
17 |
|
eqid |
|
18 |
16 17
|
dmmpti |
|
19 |
18
|
eleq2i |
|
20 |
|
eqcom |
|
21 |
19 20
|
anbi12i |
|
22 |
|
sneq |
|
23 |
22
|
cnveqd |
|
24 |
23
|
unieqd |
|
25 |
|
snex |
|
26 |
25
|
cnvex |
|
27 |
26
|
uniex |
|
28 |
24 17 27
|
fvmpt |
|
29 |
28
|
eqeq2d |
|
30 |
29
|
pm5.32i |
|
31 |
21 30
|
bitri |
|
32 |
13 31
|
bitri |
|
33 |
32
|
biancomi |
|
34 |
33
|
anbi1i |
|
35 |
|
anass |
|
36 |
34 35
|
bitri |
|
37 |
36
|
exbii |
|
38 |
|
breq1 |
|
39 |
38
|
anbi2d |
|
40 |
27 39
|
ceqsexv |
|
41 |
37 40
|
bitri |
|
42 |
10 41
|
bitrdi |
|
43 |
42
|
expcom |
|
44 |
3 6 43
|
pm5.21ndd |
|